package com.java.util;

public class firstutil {

    private firstutil(){};


    public static String chu(int num) {
        String result = "";
        switch (num) {
            case 1:
                result = "石头";
                break;
            case 2:
                result = "剪刀";
                break;
            case 3:
                result = "布";
                break;
            default:
                result = "没有这种东西，请睁大你的狗眼看看你写的是什么？";
                break;
        }
        return result;

    }
}
